An emissary is someone who is sent on a mission or an official errand. The term official emissary is often used to describe a person who holds a designated position of authority and is tasked with representing their organization or government. Synonyms for official emissary include diplomatic envoy, representative, ambassador, delegate, plenipotentiary, negotiator, and messenger. These terms are interchangeable and are used to describe individuals who are responsible for carrying out official duties such as negotiating treaties, building relationships between nations, and representing their country's interests in foreign countries. Regardless of the specific meaning of the term chosen, an official emissary is an important figure who plays a vital role in international relations and diplomacy.